8 Channel 5V Relay Module

Description

Description Module size: 1 Road: 50 * 25 * 18.5MM1 Channel: 50 * 25 * 18.5mm 2 Channel: 50 * 41 * 17.5mm 4 Channel: 75 * 51 * 16.5mm 8 Channel: 142 * 52 * 18mm Module interface: 1. DC +: the positive supply (voltage relay according to the requirements) 2. DC-: negative one 3. IN: can be high or low level relay control Relay output: 1. NO: normally open relay interfaces, floating suction before closing the relay, after the short circuit is absorbed and COM 2. COM: Common Interface Relays 3. NC: normally closed relay interfaces, COM and close the front relay short circuit, the pull vacant High and low end trigger selection: 1. LOW when the shorting jumper is level-triggered; 2. to trigger high and high jumper shorted.